[jdk17u-dev] RFR: 8292660: C2: blocks made unreachable by NeverBranch-to-Goto conversion are removed incorrectly [v2]

[Goetz Lindenmaier]

> I backport this for parity with 17.0.7-oracle.
> 
> Clean.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Add test forgotten in first push

-------------

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/979/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/979/files/dfe77c18..3c25de22

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=979&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=979&range=00-01

  Stats: 56 lines in 1 file changed: 56 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/979.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/979/head:pull/979

PR: https://git.openjdk.org/jdk17u-dev/pull/979